Mountain Pass, CA Radon Levels
Check local Mountain Pass radon levels and find certified testing and mitigation professionals to keep your home safe
Mountain Pass, CA Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
San Bernardino County, CA
Zip Code
92366
Located in the Mojave Desert region of San Bernardino County, Mountain Pass sits in an area where granitic bedrock and fault systems can create localized radon accumulation zones. Testing data for zip code 92366 is currently unavailable, making individual home assessment important for the few residents in this sparsely populated area. Despite California's generally lower radon risk, the unique geological conditions near interstate corridors and mining areas warrant careful attention to indoor air quality.
Mountain Pass, CA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Mountain Pass?
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Radon FAQ for Mountain Pass, CA
What EPA Radon Zone is Mountain Pass in?
Mountain Pass and the 92366 zip code are in San Bernardino County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Mountain Pass?
Radon mitigation in Mountain Pass typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Mountain Pass?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.
Most Active Radon Markets in California
Cities in California with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Los Angeles | 7.83 pCi/L | 6 |
| Mammoth Lakes | 10.80 pCi/L | 5 |
| San Jose | 4.20 pCi/L | 5 |
| Rancho Palos Verdes | 8.00 pCi/L | 4 |
| Bishop | 6.25 pCi/L | 4 |
| Oakland | 5.00 pCi/L | 4 |
| Woodland Hills | 7.67 pCi/L | 3 |
| South Lake Tahoe | 6.33 pCi/L | 3 |
| Palos Verdes Peninsula | 6.00 pCi/L | 3 |
| Sacramento | 4.33 pCi/L | 3 |